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Finding the Fourth Proportional to 653,771.59, 902,278.02 and 395,790.73

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Solution

The fourth proportional to 653,771.59, 902,278.02 and 395,790.73 is: 546,235.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,771.59 : 902,278.02 = 395,790.73 : x
  2. Step 2: Convert to fraction form
    653,771.59/902,278.02 = 395,790.73/x
  3. Step 3: Cross multiply
    653,771.59x = 902,278.02 × 395,790.73
  4. Step 4: Simplify right side
    653,771.59x = 357,113,276,198.76
  5. Step 5: Solve for x
    x = 357,113,276,198.76/653,771.59
  6. Step 6: Final answer
    x = 546,235.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.